package com.eding.mapper;import com.baomidou.mybatisplus.core.mapper.BaseMapper;import com.eding.dto.ShoppingCartDTO;import com.eding.entity.ShoppingCart;import org.apache.ibatis.annotations.Mapper;import org.apache.ibatis.annotations.Update;import java.util.List;@Mapperpublic interface ShoppingCartMapper extends BaseMapper<ShoppingCart> {    /**     * 根据不同条件查询购物车信息     * @param shoppingCart     * @return     */    ShoppingCart getShoppingCart(ShoppingCart shoppingCart);    void subShoppingCart(ShoppingCart shoppingCart);    void insertBatch(List<ShoppingCart> shoppingCartList);}